chromium/third_party/blink/renderer/core/layout/pagination_utils.cc

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/core/layout/pagination_utils.h"

#include "printing/mojom/print.mojom-blink.h"
#include "third_party/blink/public/web/web_print_page_description.h"
#include "third_party/blink/public/web/web_print_params.h"
#include "third_party/blink/renderer/core/css/resolver/style_resolver.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/layout/block_break_token.h"
#include "third_party/blink/renderer/core/layout/block_node.h"
#include "third_party/blink/renderer/core/layout/constraint_space.h"
#include "third_party/blink/renderer/core/layout/constraint_space_builder.h"
#include "third_party/blink/renderer/core/layout/geometry/box_strut.h"
#include "third_party/blink/renderer/core/layout/geometry/fragment_geometry.h"
#include "third_party/blink/renderer/core/layout/layout_block_flow.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/core/layout/length_utils.h"
#include "third_party/blink/renderer/core/layout/physical_box_fragment.h"
#include "third_party/blink/renderer/core/layout/physical_fragment_link.h"
#include "third_party/blink/renderer/core/style/computed_style.h"

namespace blink {

namespace {

bool ShouldCenterPageOnPaper(const WebPrintParams& params) { … }

PhysicalSize PageBoxDefaultSize(const Document& document) { … }

LogicalSize PageBoxDefaultSizeWithSourceOrientation(const Document& document,
                                                    const ComputedStyle& style,
                                                    LogicalSize layout_size) { … }

float TargetShrinkScaleFactor(LogicalSize target_size,
                              LogicalSize source_size) { … }

wtf_size_t PageNumberFromPageArea(const PhysicalBoxFragment& page_area) { … }

}  // anonymous namespace

void SetUpSpaceBuilderForPageBox(LogicalSize available_size,
                                 ConstraintSpaceBuilder* builder) { … }

LogicalSize DesiredPageContainingBlockSize(const Document& document,
                                           const ComputedStyle& style) { … }

void ResolvePageBoxGeometry(const BlockNode& page_box,
                            LogicalSize page_containing_block_size,
                            FragmentGeometry* geometry,
                            BoxStrut* margins) { … }

PhysicalSize CalculateInitialContainingBlockSizeForPagination(
    Document& document) { … }

float TargetScaleForPage(const PhysicalBoxFragment& page_container) { … }

LogicalSize FittedPageContainerSize(const Document& document,
                                    const ComputedStyle& style,
                                    LogicalSize source_margin_box_size) { … }

LogicalRect TargetPageBorderBoxLogicalRect(
    const Document& document,
    const ComputedStyle& style,
    const LogicalSize& source_margin_box_size,
    const BoxStrut& margins) { … }

wtf_size_t PageCount(const LayoutView& view) { … }

const PhysicalBoxFragment* GetPageContainer(const LayoutView& view,
                                            wtf_size_t page_index) { … }

const PhysicalBoxFragment* GetPageArea(const LayoutView& view,
                                       wtf_size_t page_index) { … }

const PhysicalFragmentLink& GetPageBorderBoxLink(
    const PhysicalBoxFragment& page_container) { … }

const PhysicalBoxFragment& GetPageBorderBox(
    const PhysicalBoxFragment& page_container) { … }

const PhysicalBoxFragment& GetPageArea(
    const PhysicalBoxFragment& page_border_box) { … }

PhysicalRect StitchedPageContentRect(const LayoutView& layout_view,
                                     wtf_size_t page_index) { … }

PhysicalRect StitchedPageContentRect(
    const PhysicalBoxFragment& page_container) { … }

const BlockBreakToken* FindPreviousBreakTokenForPageArea(
    const PhysicalBoxFragment& page_area) { … }

float CalculateOverflowShrinkForPrinting(const LayoutView& view,
                                         float maximum_shrink_factor) { … }

WebPrintPageDescription GetPageDescriptionFromLayout(const Document& document,
                                                     wtf_size_t page_number) { … }

}  // namespace blink